Improvement in regulators for gas-burners



T. F. McGANN. REGULATORS FOR GAS-BURNERS No, 194,877. PatentedSept.4,1877.

7%6721111) an I Invenia 7" UNITED THOMAS F. MGGANN, OF BOSTON,MASSACHUSETTS.

IMPROVEMENT IN REGULATORS FOR GAS-BURNERS.

Specification forming part of Letters Patent No. 194,877, datedSeptember 4, 1877 application filed July 26, 1877.

To all whom it may concern Be it known that 1, THOMAS F. MCGANN, ofBoston, in the county of Sufiolk and State of Massachusetts, haveinvented certain Improvements in Checks andRegulators for Gas- Burners,of which the following is a specification:

In the accompanying drawings, forming a part of this specification,Figure 1 represents a sectional view of a gas-burner embodying myinvention. Figs. 2, 3, 4, 5, 6, 7, and 8 represent modifications of thesame.

Similar letters of reference refer to like parts.

This invention has for its object to provide a cheap and simple devicefor regulating and checking the passage of gas from the tube to the tipof an ordinary gas-burner, which is adapted to be applied to orinterposed between the ordinary tip and shell or tube of a gasburner,without alteration of said parts or special manipulation in applying andfitting.

To this end my invention consists in a hollow tapering plug, providedwith means for checking and regulating the passage of gas, and adaptedto receive a lava tip, and be inserted therewith into the shell orpillar of a gasburner, as I will now proceed to describe.

It consists, also, in certain details of construction and combinationsof parts, all of which I will now proceed to describe and point out inmy claims.

In the drawings, S represents the shell or tube of an ordinarygas-burner, and T represents the ordinary tip, which is tapering orfrusto-conical at its base, as shown, and is adapted to be applied tothe shell S by being inserted as a plug or stopper into said shell inthe usual manner.

P represents my improved gas regulating and checking device, which iscomposed of a hollow plug, tapering in form, adapted to receive thetapering end of the tip T, and to be inserted with said tip into the endof the shell S, as shown in Figs. 1, 2, 4, 5, 6, and 8.

The plug P is provided with means which adapt it to regulate to anydesired extent, or to entirely obstruct, the passage of gas from theshell S to the tip, and this result I accomplish, preferably, by themeans shown in Fig. 1, the construction being as follows: The plug isprovided with a partition, 1', in which is an opening, z", and with ascrew valve or plug, j, adapted to entirely or partially close theopening i. Gas enters the plug through orifices 0 0 below the partition0', and when the opening 2" is open passes through said opening to theburner. By screwing up the plug j the orifice 2' may be closed orobstructed to any desired extent.

Modificationsof this arrangement are shown in Figs. 2, 3, 4, 5, 6, 7,and 8. In Figs. 2 and 3 the plug is provided with orifices k in thebottom, and these orifices are adapted to be covered by the head h of ascrew, h. In Fig.4 a hollow threaded tube, It, is employed, throughwhich the gas is adapted to pass. This tube is provided at its upper endwith a buttonvalve, '0, which rests loosely on the tube, and is raisedby the pressure of the gas. By screwing up the tube until the valve 0abuts against the tip T the flow of gas may be shut ofi. The plug isprovided with orifices o o, as in Fig. 1. In Fig. 5 the threaded tube tis employed in connection with an inverted cupshaped valve, 0;. In Figs.6 and 7 a thimble, t, is fitted closely to the end of the plug, andprovided with a handle by which it may be turned. The plug and thimbleare provided with orifices o, and when these orifices coincide they formpassages for the gas. By turning the thimble the orifices aredisconnected and the gas is shut off. In Fig. 8 a cupshaped valve, 1;,is employed, which rests upon an opening, 0, in the bottom of the plug.

It will be seen that the plug P and its gasregulating devices areadapted to be readily applied to or detached from the shell S and tip T.I prefer to make the plug P of thin copper, and attach it to the otherparts by simply forcing it firmly into the shell, and crowding the tipinto the upper end,this operation insuring tight joints. Or the tip maybe firstplaced in the plug and then both may be forced into the shell.If desired, the plug may be screwed to the shell and the tip may bescrewed to the plug, or the joints between the tip and plug, and theplug and shell may be leaded or otherwise tightened.

The tapering form of the plug P enables it to fit different-sized tipsand pillars, and when the tip is inserted in the plug it is protectedand prevented from cracking; hence the plug acts as a holder andprotector for the tip, and 2. The combination of the plug P, provided asa means for holding the gas-regulating dewith gas regulating andchecking devices, the

vices in close proximity to the tip. tip '1, and the shell or tube S, asset forth.

If desired, the plug P may be formed with In testimony whereof I havesigned my or rigidly attached t0 the shell or tube S. name to thisspecification in the presence of I claimtwo subscribing witnesses. 1.The hollow tapering plug P, adapted to receive the tapering tip T, andto be inserted THOMAS F. MGGANN. into the upper end of the shell or tubeS, and provided with means, substantially as de- Witnesses: scribed, forchecking and regulating the flow E. B. FAIROHILD,

of gas from the shell to the tip, as set forth. O. F. BROWN.

